A.J Hoge has written a book titled "Effortless English: Learn To Speak English Like A Native". In his book, Hoge addresses a very popular question: why so many diligent students in the world study English for many years but they can barely speak good English?
One reason he found out is that those students are constantly discouraged by their English teachers. How could this happen, you may be wondering? Simply put, those students are continuously discouraged through exam, low grade, and punishment, for the mistakes they have made. When this process goes over and over again, students finally develop negative emotions with English. When these negative emotions are formed, whenever they try to use English, they automatically feel nervous and stressed. And they are afraid of making mistakes. Thus, they miss the most efficient way of learning.